Cisco WUSB54GS Manuale utente

A Division of Cisco Systems, Inc.

Model No.

USB Network Adapter

Wireless-G

WUSB54GS ver. 2

User Guide

WIRELESS

GHz

2.4

802.11g

with SpeedBooster

Wireless-G USB Network Adapter with SpeedBooster

Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco

rights reserved. Other brands and product names are trademarks or registered trademarks of their respective

holders.

How to Use this User Guide

This User Guide has been designed to make understanding networking with the Wireless-G USB Network Adapter

easier than ever. Look for the following items when reading this User Guide:

In addition to these symbols, there are definitions for technical terms that are presented like this:

Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like

this:

Figure numbers and descriptions can also be found in the "List of Figures" section in the “Table of Contents”.

This exclamation point means there is a Caution or

warning and is something that could damage your

property or the Wireless-G USB Network Adapter.

This checkmark means there is a Note of interest and

is something you should pay special attention to

while using the Wireless-G USB Network Adapter.

This question mark provides you with a reminder

about something you might need to do while using

the Wireless-G USB Network Adapter.

word: definition.

Figure 0-1: Sample Figure Description

WUSB54GS-UG-40811A JL

WARNING: This product contains chemicals, including lead, known

to the State of California to cause cancer, and birth defects or other

reproductive harm. Wash hands after handling.

Wireless-G USB Network Adapter with SpeedBooster

Table of Contents

Chapter 1: Introduction 1

Welcome 1

What’s in this Guide? 2

Chapter 2: Planning your Wireless Network 4

Network Topology 4

Roaming 4

Network Layout 5

Chapter 3: Using the USB Network Adapter’s Setup Wizard 6

Chapter 4: Connecting the USB Network Adapter 13

The LED Indicators 14

Chapter 5: Using the Wireless Network Monitor 15

Using the Wireless Network Monitor Icon 15

Accessing the Wireless Network Monitor 16

Link Information 16

Site Survey 19

Profiles 20

Creating a New Profile 21

Appendix A: Troubleshooting 28

Common Problems and Solutions 28

Frequently Asked Questions 29

Appendix B: Wireless Security 32

Security Precautions 32

Security Threats Facing Wireless Networks 32

Appendix C: Windows Help 35

Appendix D: Glossary 36

Appendix E: Specifications 39

Appendix F: Warranty Information 41

Appendix G: Regulatory Information 42

Appendix H: Contact Information 43

Wireless-G USB Network Adapter with SpeedBooster

List of Figures

Figure 3-1: The Setup Wizard’s Welcome Screen 6

Figure 3-2: The License Agreement Screen 7

Figure 3-3: The Wireless Mode Screen 7

Figure 3-4: The Ad-Hoc Mode Settings Screen 8

Figure 3-5: The Wireless Security Screen 8

Figure 3-6: The WEP Security Settings Screen 9

Figure 3-7: The Wireless Security PSK Screen 9

Figure 3-8: The Wireless Security PSK+RADIUS (EAP-TLS) Screen 10

Figure 3-9: The Wireless Security RADIUS (EAP-PEAP) Screen 10

Figure 3-10: The Check Settings Screen 11

Figure 3-11: The Windows 2000 Digital Signature Screen 11

Figure 3-12: The Windows XP Digital Signature Screen 11

Figure 3-13: The Congratulations Screen 12

Figure 4-1: The Adapter’s USB Port 13

Figure 4-2: A USB Port 13

Figure 4-3: The New Hardware Wizard 13

Figure 4-4: The Windows 2000 Digital Signature Screen 14

Figure 4-5: The Windows XP Digital Signature Screen 14

Figure 5-1: Wireless Network Monitor Icon 15

Figure 5-2: Windows XP - Use Windows XP Wireless Configuration 15

Figure 5-3: Windows XP - Use Linksys Wireless Network Monitor 15

Figure 5-4: Link Information 16

Figure 5-5: More Information - Wireless Network Status 17

Figure 5-6: More Information - Wireless Network Statistics 18

Figure 5-7: Site Survey 19

Figure 5-8: WEP Key Needed for Connection 19

Figure 5-9: PSK (Pre-Shared Key) Needed for Connection 19

Figure 5-10: Profiles 20

Figure 5-11: Import a Profile 20

Figure 5-12: Export a Profile 20

Wireless-G USB Network Adapter with SpeedBooster

Figure 5-13: Create a New Profile 21

Figure 5-14: Enter Profile Name 21

Figure 5-15: Network Settings for New Profile 21

Figure 5-16: Wireless Mode for New Profile 22

Figure 5-17: Ad-Hoc Mode Settings for New Profile 22

Figure 5-18: Wireless Security for New Profile 23

Figure 5-19: Wireless Security - WEP for New Profile 23

Figure 5-20: Wireless Security - PSK for New Profile 24

Figure 5-21: Wireless Security - PSK + RADIUS Using EAP-TLS for New Profile 25

Figure 5-22: Wireless Security - PSK + RADIUS Using EAP-PEAP for New Profile 25

Figure 5-23: Wireless Security - RADIUS Using EAP-TLS for New Profile 26

Figure 5-24: Wireless Security - RADIUS Using EAP-PEAP for New Profile 26

Figure 5-25: Confirm New Settings for New Profile 27

Figure 5-26: Congratulations for New Profile 27

Chapter 1: Introduction

Welcome

Wireless-G USB Network Adapter with SpeedBooster

Chapter 1: Introduction

Welcome

Thank you for choosing the Wireless-G USB Network Adapter. With this Adapter, your wireless networking

experience will be faster and easier than ever.

How does the Adapter do this? Like all wireless products, the Adapter allows for greater range and mobility

within your wireless network. Connecting to your PC via the USB port means that this Adapter leaves the PC’s

slots open for other purposes. This adapter communicates over the 802.11g wireless standard, one of the newest

wireless standards, to communicate with your network.

But what does all of this mean?

Networks are useful tools for sharing computer resources. You can access one printer from different computers

and access data located on another computer's hard drive. Networks are even used for playing multiplayer video

games. So, networks are not only useful in homes and offices, they can also be fun.

PCs equipped with wireless cards and adapters can communicate without cumbersome cables. By sharing the

same wireless settings, within their transmission radius, they form a wireless network.

Use the instructions in this Guide to help you connect the Adapter, set it up, and configure it for your network.

These instructions should be all you need to get the most out of the Adapter.

802.11g: anIEEEwirelessnetworkingstandardthatspecifiesa

maximum data transfer rate of 54Mbps, an operating frequency

of 2.4GHz, and backward compatibility with 802.11b devices.

adapter: a device that adds network functionality to your PC.

network: a series of computers or devices

connected for the purpose of data sharing, storage,

and/or transmission between users.

Chapter 1: Introduction

What’s in this Guide?

Wireless-G USB Network Adapter with SpeedBooster

What’s in this Guide?

This user guide covers the steps for setting up and using the Wireless-B USB Network Adapter.

• Chapter 1: Introduction

This chapter describes the Adapter’s applications and this User Guide.

• Chapter 2: Planning Your Wireless Network

This chapter discusses a few of the basics about wireless networking.

• Chapter 3: Using the USB Network Adapter’s Setup Wizard

This chapter instructs you on how to install the Adapter’s Setup Wizard.

• Chapter 4: Connecting the USB Network Adapter

This chapter shows you how to connect the Adapter to your PC’s USB port.

• Chapter 5: Using the Wireless Network Monitor

This chapter show you how to use the Adapter’s Wireless Network Monitor.

• Appendix A: Troubleshooting

This appendix describes some problems and solutions, as well as frequently asked questions, regarding

installation and use of the Adapter.

• Appendix B: Wireless Security

This appendix discusses security issues regarding wireless networking and measures you can take to help

protect your wireless network.

• Appendix C: Windows Help

This appendix describes how you can use Windows Help for instructions about networking, such as installing

the TCP/IP protocol.

• Appendix D: Glossary

This appendix gives a brief glossary of terms frequently used in networking.

• Appendix E: Specifications

This appendix provides the Adapter’s technical specifications.

• Appendix F: Warranty Information

This appendix supplies the Adapter’s warranty information.

• Appendix G: Regulatory Information

This appendix supplies the Adapter’s regulatory information.

Chapter 1: Introduction

What’s in this Guide?

Wireless-G USB Network Adapter with SpeedBooster

• Appendix H: Contact Information

This appendix provides contact information for a variety of Linksys resources, including Technical Support.

Chapter 2: Planning your Wireless Network

Network Topology

Wireless-G USB Network Adapter with SpeedBooster

Chapter 2: Planning your Wireless Network

Network Topology

A wireless network is a group of computers, each equipped with one wireless adapter. Computers in a wireless

network must be configured to share the same radio channel. Several PCs equipped with wireless cards or

adapters can communicate with one another to form an ad-hoc network.

Linksys wireless adapters also provide users access to a wired network when using an access point or wireless

router. An integrated wireless and wired network is called an infrastructure network. Each wireless PC in an

infrastructurenetworkcan talk to any computerin a wired network infrastructure via the accesspoint or wireless

router.

An infrastructure configuration extends the accessibility of a wireless PC to a wired network, and can double the

effectivewireless transmission range for twowirelessadapter PCs. Since an accesspoint is able to forwarddata

within a network, the effective transmission range in an infrastructure network can be doubled.

Roaming

Infrastructure mode also supports roaming capabilities for mobile users. Roaming means that you can move your

wireless PC within your network and the access points will pick up the wireless PC's signal, providing that they

both share the same channel and SSID.

Before enabling you consider roaming, choose a feasible radio channel and optimum access point position.

Proper access point positioning combined with a clear radio signal will greatly enhance performance.

access point: device that allows wireless-

equipped computers and other devices to

communicate with a wired network.

ad-hoc: a group of wireless devices

communicating directly with each other (peer-

to-peer) without the use of an access point

infrastructure: Configuration in which a

wireless network is bridged to a wired

network via an access point.

roaming: the ability to take a wireless

device from one access point's range to

another without losing the connection.

ssid: your wireless network’s name

Chapter 2: Planning your Wireless Network

Network Layout

Wireless-G USB Network Adapter with SpeedBooster

Network Layout

Linksys wireless access points and wireless routers have been designed for use with 802.11a, 802.11b, and

802.11g products. With 802.11g products communicating with the 802.11b standard and some products

incorporating both “a” and “g”, products using these standards can communicate with each other.

Access points and wireless routers are compatible with 802.11a, 802.11b and 802.11g adapters, such at the PC

Cardsfor your laptop computers, PCI Cardforyourdesktop PC,and USB Adapters for when you want to enjoyUSB

connectivity. Wireless products will also communicate with the wireless PrintServer.

When you wish to connect your wired network with your wireless network, network ports on access points and

wireless routers can be connected to any of Linksys's switches or routers.

With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at

www.linksys.com for more information about wireless products.

802.11b: an IEEE wireless networking standard

that specifies a maximum data transfer rate of

11Mbps and an operating frequency of 2.4GHz.

switch: device that is the central point of connection for

computers and other devices in a network, so data can

be shared at full transmission speeds.

router: a networking device that connects multiple networks

together, such as a local network and the Internet.

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